From Longman Business Dictionaryfair dealingˌfair ˈdealing1[uncountable]COMMERCE a way of doing business that is honest and treats people equallyAny reputable company or adviser will be keen to preserve a reputation for fair dealing.2[uncountable]LAW reasons given for using or copying a book, film, song etc without the permission of the person or company that owns or made it, that a court of law can accept as reasonableSYNFAIR USE AmE → dealing